2016-03-21

[public] 448K views, 11.7K likes, 121 dislikes audio only

Stand-up Maths

A spinning coin rotates as it wobbles. The rate of rotation is (1/cos(θ) - 1) of the rate of wobble. Draw an arrow on a coin and check it yourself!

The notes from the whiteboard are available here:

http://imgur.com/a/XVw6m

Here are the videos of the disk spinning:

NORMAL SPEED: https://youtu.be/dmo0whbDiGQ

10% SPEED: https://youtu.be/2Kk0KMQeRCk

Music by Howard Carter

Design by Simon Wright

MATT PARKER: Stand-up Mathematician

Website: http://standupmaths.com/

Maths book: http://makeanddo4D.com/

Nerdy maths toys: http://mathsgear.co.uk/